Ziaullah Rahmani replied 28th Apr '16:
The Holy Quran (2/195) says: "---And don t throw yourself into destruction". There is no doubt that the use of Cannabis is actually harmful for human body and intellect alike. Thus it comes under the category of things that cause destruction, hence prohibited by extension of the command.
The Holy Quran clearly commands more than once to obey God and his Messenger ie. Muhammad (peace be upon him). The Prophet (peace be upon him) clearly said that every intoxicating thing is strictly prohibited hence the prohibition of Cannabis.
Carl Abbott replied 27th Apr '16:
Chapter 71 of the Tao Te Ching says this about cognition. Cannabis
affects cognition. Whether it treats the "disease" or exacerbates it is the question each mind must answer.
Realizing I don’t’ know is better; not knowing this knowing is disease.
Man alone faults this disease; this so as not to be ill.
The sacred person is not ill, taking his disease as illness.
Man alone has this disease; this is because to him there is no illness.